Answer: sigma is used for measuring Population Standard Deviation.
Step-by-step explanation:
The lower case Greek letter 'sigma' is denoted by the symbol ( ).
This symbol indicates the Population Standard Deviation of the data. Standard deviation means how much variation or dispersion is there in our data. Squaring of standard deviation gives us Variance which is denoted by the symbol .
Formula for Population Standard deviation ( ) is = ,
where = each value from our list of data
= Population mean of data
N = Number of observations in our data
Standard deviation can never be negative and it is very much sensitive to outliers in our data.
If
|a|=b
assume
-a=b and
a=b
|3x-4|=5
assume
3x-4=5 and
-3x+4=5
solve each
3x-4=5
add 4
3x=9
divdide 3 both isdes
x=3
-3x+4=5
minus 4
-3x=1
divide -3
x=-1/3
x=-1/3 and 3
Finding the lengths of the legs of the right triangle, we have 6 and 3. (6*3)/2 = 9. Finding the area of the semi-circle we obtain
which rounding to 3.14 as pi, we obtain 3.5325. Adding up the area of the triangle and the semi-circle and the triangle we get 9+3.5325 which equals 12.5325
Answer: -5
Step-by-step explanation: Its -5 because a slope in a linear equation is always in front of/attached to the x.
Answer:
Step-by-step explanation:
<u>We know that:</u>
<u>Work:</u>
- 40/100 x 95
- => 2/5 x 95
- => 2 x 17
- => 34 cupcakes
Hence, 34 cupcakes had sprinkles.